A peculiar metal shard that sparked UFO enthusiasts’ imaginations as potential alien technology has been debunked by ...

Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...

And even if they were to happen across the probes, finding a way for aliens to discover where and when they were made is not ...

In Ripley's fight to keep human life as far as physically possible away from the Xenomorphs, Burke was initially a warm ...

About 470,000 “interesting” radio hits can still add up to zero. That was the practical outcome when astronomers aimed one of ...

The unusual behaviour of interstellar comet 3I/ATLAS has reignited online debate, but astronomers say the gaps in public ...

For this installment of "From the Archives," we answer a reader question about the monk parakeets and grackles in Austin.

For fans of 1987's "Predator" and its subsequent sequels, these 15 action-packed, suspense-driven monster romps will ...

Astronomers scan interstellar comet 3I/ATLAS for alien signals as Breakthrough Listen's 2026 technosignature search comes up ...

Pandora, the latest in a long portfolio of University of Arizona's space science missions, has cleared its last major ...

A giant impact on the early Earth could have brought the building blocks of RNA to our planet, which new research suggests ...

If scientists are able to inspect it in person, and they find that Mars was indeed once alive with microbes, we would know ...